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EP1166020B1 - Procede de fabrication d'une suspension epaisse - Google Patents

Procede de fabrication d'une suspension epaisse Download PDF

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Publication number
EP1166020B1
EP1166020B1 EP00919557A EP00919557A EP1166020B1 EP 1166020 B1 EP1166020 B1 EP 1166020B1 EP 00919557 A EP00919557 A EP 00919557A EP 00919557 A EP00919557 A EP 00919557A EP 1166020 B1 EP1166020 B1 EP 1166020B1
Authority
EP
European Patent Office
Prior art keywords
lumen
wall
path
runner
inlet port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00919557A
Other languages
German (de)
English (en)
Other versions
EP1166020A4 (fr
EP1166020A1 (fr
Inventor
Robert A. Benson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1166020A1 publication Critical patent/EP1166020A1/fr
Publication of EP1166020A4 publication Critical patent/EP1166020A4/fr
Application granted granted Critical
Publication of EP1166020B1 publication Critical patent/EP1166020B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/80—Freezing; Subsequent thawing; Cooling
    • A23B2/803—Materials being transported through or in the apparatus, with or without shaping, e.g. in the form of powders, granules or flakes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
    • A23G9/04—Production of frozen sweets, e.g. ice-cream
    • A23G9/045—Production of frozen sweets, e.g. ice-cream of slush-ice, e.g. semi-frozen beverage
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
    • A23G9/04—Production of frozen sweets, e.g. ice-cream
    • A23G9/14—Continuous production
    • A23G9/16—Continuous production the products being within a cooled chamber, e.g. drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • F25C1/12—Producing ice by freezing water on cooled surfaces, e.g. to form slabs
    • F25C1/14—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes
    • F25C1/145—Producing ice by freezing water on cooled surfaces, e.g. to form slabs to form thin sheets which are removed by scraping or wedging, e.g. in the form of flakes from the inner walls of cooled bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies

Definitions

  • This invention relates to method for forming a slurry.
  • a source fluid from which solid material forms when it is cooled is passed through apparatus which defines a continuous reentrant lumen.
  • the lumen has a thermally conductive processing wall from which heat is extracted from the outside as the source fluid flows through the lumen, resulting in formation of solid material on the inner surface of the lumen wall.
  • a runner circulates around the lumen and dislodges material deposited on the inner surface of the lumen wall. This material is then carried as solids of a slurry out of the apparatus with the fluid stream.
  • Heat exchange systems that are continously cleaned internally by a runner are known from US-3425083.
  • apparatus 10 used in the practice of the invention, includes wall 11 which defines continuous reentrant lumen 12 passing through processing wall 15 and runner return structure 19.
  • Inlet port 13 communicates with lumen 12 as does outlet port 14.
  • a first path 22 passes through lumen 12 from inlet port 13 to outlet port 14.
  • the lumen wall around first path 22 includes heat exchanging portion 15 which is made of thermally conductive material.
  • the lumen 12 within heat exchanging portion 15 is advantageously of uniform cross-section.
  • a shorter path 23 through lumen 12 from inlet port 13 to outlet port 14 is also defined passing only through runner return structure 19.
  • Runner return structure 19 has a reduced portion 30 in which the cross-section of lumen 12 is less than that in heat exchanging portion 15.
  • Runner return structure 19 also includes a plug mechanism such as check valve 31 which blocks flow from inlet port 13 through second path 23 to outlet port 14.
  • Heat exchanger containment shell 25 encloses a space 20 around heat exchanging portion 15 of lumen wall 11.
  • Coolant inlet port 26 is connected to admit coolant to space 20 and coolant effluent port 27 is connected to discharge coolant from coolant space 20.
  • the distance between lead entrainment element 44 and rear entrainment element 45 is greater than the distance from inlet port 13 to outlet port 14 along path 23.
  • Each of the distances between return blocking element 81 and return blocking element 82, between return blocking element 82 and return blocking element 83, and between return blocking element 83 and return blocking element 84 is less than the length of reduced portion 30.
  • entrainment elements 44, 45 may advantageously be constructed from cut-outs 50 cut from flexing metallic or polymeric sheet cut in the form shown in Fig. 4. Two such cut-outs are affixed together centrally with the vanes 51 of one cut-out covering the depressions 52 of the other. This cut-out pair is then slipped over spine 48 and clamped against cupped face of return blocking element 81. The cupped face presses against the cut-outs and bends the cut-outs backward into a conical shape.
  • lead entrainment element 44 passes across outlet port 14 and enters reduced portion 30, deforming to assume a smaller periphery as it does so. Then the lead end of the runner element continues to advance, pushing open check valve 31, passing across inlet port 13, and entering path 22 of the lumen. It may be noted that advantageously, lead entrainment element 44 enters the upstream end of path 22 before rear entrainment element 45 has left the downstream end of path 22 so that at least one of these entrainment elements is always in path 22 where the flow will sweep it along.
  • water is introduced into inlet port 14 and chilled brine at a temperature below 0 deg C is supplied to coolant inlet port 26.
  • Water ice will form on processing wall 15 and be scraped from the wall into the stream of water by the runner to produce a slurry of ice particles dispersed in water, which is discharged through outlet port 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Zoology (AREA)
  • Fluid Mechanics (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Treatment Of Sludge (AREA)
  • Paper (AREA)
  • Filtration Of Liquid (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Inorganic Insulating Materials (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (4)

  1. Procédé de production d'une suspension épaisse de solides en suspension dans un liquide comprenant les étapes consistant à fournir un appareil comprenant une structure définissant une lumière de réintroduction ininterrompue (12), ladite lumière ayant une paroi (15), un orifice d'entrée (13) communiquant avec ladite lumière au niveau d'une première position et un orifice de sortie (14) communiquant avec ladite lumière au niveau d'une deuxième position de manière à ce qu'un premier passage (22) et un deuxième passage (23) soient définis depuis l'orifice d'entrée jusqu'à l'orifice de sortie à travers la lumière, une structure de retour (19) située autour dudit deuxième passage, une paroi de traitement sur laquelle des matières s'accumulent pendant le fonctionnement dudit appareil, ladite paroi de traitement faisant partie de ladite paroi à lumière et étant située le long dudit premier passage, une pièce mobile (24) située à l'intérieur de la lumière et libre de se déplacer à travers la lumière, ladite pièce mobile comprenant une partie conditionnant la paroi utile lorsque la pièce mobile se déplace le long dudit premier passage pour enlever les matières accumulées sur ladite paroi de traitement, et un mécanisme d'obturation utile pour bloquer le flux depuis ledit orifice d'entrée jusqu'audit orifice de sortie à travers ledit deuxième passage, à introduire dans ledit orifice d'entrée un liquide à partir duquel des solides se forment lors du refroidissement, à supprimer la chaleur de l'extérieur de ladite paroi de traitement, à déposer des matières solides à l'intérieur de ladite paroi de traitement, à entraîner ladite pièce mobile conditionnant la paroi dans ladite lumière, à déloger les matières solides formées à l'intérieur de ladite paroi de traitement à l'aide de ladite pièce mobile, et à retirer dudit orifice une suspension épaisse de liquide dans laquelle des matières solides sont en suspension.
  2. Procédé de production d'une suspension épaisse de solides en suspension dans un liquide comprenant les étapes consistant à fournir un appareil comprenant une structure définissant une lumière de réintroduction ininterrompue (12), ladite lumière ayant une paroi (15), un orifice d'entrée (13) communiquant avec ladite lumière au niveau d'une première position et un orifice de sortie (14) communiquant avec ladite lumière au niveau d'une deuxième position de manière à ce qu'un premier passage (22) et un deuxième passage (23) soient définis depuis l'orifice d'entrée jusqu'à l'orifice de sortie à travers la lumière, une structure de retour (19) située autour dudit deuxième passage, une paroi de traitement sur laquelle des matières s'accumulent pendant le fonctionnement dudit appareil, ladite paroi de traitement faisant partie de ladite paroi à lumière et étant située le long dudit premier passage, une pièce mobile (24) située à l'intérieur de la lumière et libre de se déplacer à travers la lumière, ladite pièce mobile comprenant une partie conditionnant la paroi utile lorsque la pièce mobile se déplace le long dudit premier passage pour enlever les matières accumulées sur ladite paroi de traitement, et un mécanisme d'obturation utile pour bloquer le flux depuis ledit orifice d'entrée jusqu'audit orifice de sortie à travers ledit deuxième passage, à introduire dans ledit orifice d'entrée un liquide à partir duquel des solides se forment lors du chauffage, à apporter la chaleur à l'extérieur de ladite paroi de traitement, à déposer des matières solides à l'intérieur de ladite paroi de traitement, à entraîner ladite pièce mobile conditionnant la paroi dans ladite lumière, à déloger les matières solides formées à l'intérieur de ladite paroi de traitement à l'aide de ladite pièce mobile, et à retirer dudit orifice une suspension épaisse de liquide dans laquelle des matières solides sont en suspension.
  3. Procédé selon la revendication 1, dans lequel l'appareil fourni comprend un caisson de confinement enfermant un espace autour de ladite paroi de traitement.
  4. Procédé selon la revendication 2, dans lequel l'appareil fourni comprend un caisson de confinement enfermant un espace autour de ladite paroi de traitement.
EP00919557A 1999-03-29 2000-03-21 Procede de fabrication d'une suspension epaisse Expired - Lifetime EP1166020B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US282022 1999-03-29
US09/282,022 US6070417A (en) 1999-03-29 1999-03-29 Method for making slurry
PCT/US2000/007690 WO2000058671A1 (fr) 1999-03-29 2000-03-21 Procede de fabrication d'une suspension epaisse

Publications (3)

Publication Number Publication Date
EP1166020A1 EP1166020A1 (fr) 2002-01-02
EP1166020A4 EP1166020A4 (fr) 2005-05-11
EP1166020B1 true EP1166020B1 (fr) 2007-01-03

Family

ID=23079762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00919557A Expired - Lifetime EP1166020B1 (fr) 1999-03-29 2000-03-21 Procede de fabrication d'une suspension epaisse

Country Status (13)

Country Link
US (1) US6070417A (fr)
EP (1) EP1166020B1 (fr)
JP (1) JP2002539946A (fr)
AT (1) ATE350632T1 (fr)
AU (1) AU4022000A (fr)
BR (1) BR0009388B1 (fr)
CA (1) CA2366965C (fr)
DE (1) DE60032753T2 (fr)
EA (1) EA002861B1 (fr)
MX (1) MXPA01009826A (fr)
NO (1) NO319444B1 (fr)
OA (1) OA12040A (fr)
WO (1) WO2000058671A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6656366B1 (en) 1999-07-12 2003-12-02 Halliburton Energy Services, Inc. Method for reducing solids buildup in hydrocarbon streams produced from wells
US6412135B1 (en) 2001-03-21 2002-07-02 Robert A. Benson Exchanger of wall clearing shuttles
US7918283B2 (en) * 2004-12-20 2011-04-05 Shell Oil Company Method and apparatus for a cold flow subsea hydrocarbon production system
AU2006309322B2 (en) * 2005-01-12 2009-07-09 Shell Internationale Research Maatschappij B.V. Methods for transporting hydrocarbons
US7703535B2 (en) * 2005-07-29 2010-04-27 Benson Robert A Undersea well product transport
WO2008056252A2 (fr) * 2006-11-09 2008-05-15 Vetco Gray Scandinavia As Système et procédé de production d'hydrocarbures sous-refroidis comprenant un élément mobile entraîné
NO334539B1 (no) * 2007-10-19 2014-03-31 Statoilhydro Asa Fremgangsmåte for voksfjerning
BRPI0911000B1 (pt) * 2008-07-17 2019-10-22 Vetco Gray Scandinavia As sistema para a produção de uma lama de partículas sólidas e fluido de produção de um poço submarino e método para a produção de uma lama de partículas sólidas e fluido de produção dotado de uma característica desejada
BRPI1007044B1 (pt) * 2009-01-16 2019-08-06 Shell Internationale Research Maatschappij B.V. Sistema de produção submarina, e, método para produzir hidrocarbonetos
US8932996B2 (en) 2012-01-11 2015-01-13 Clearwater International L.L.C. Gas hydrate inhibitors and methods for making and using same
WO2014169932A1 (fr) 2013-04-15 2014-10-23 Statoil Petroleum As Dispersion de particules solides transportées dans un écoulement fluide

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE303303B (fr) * 1965-07-12 1968-08-26 Alfa Laval Ab
DE1794084C3 (de) * 1968-09-04 1973-10-25 Union Rheinische Braunkohlen Kraftstoff Ag, 5047 Wesseling Vorrichtung zum kontinuierlichen Gewinnen von Kristallen aus einer Schmelze oder Losung
US4287725A (en) * 1978-05-15 1981-09-08 King-Seeley Thermos Co. Ice transport and dispensing system
US5617734A (en) * 1995-03-27 1997-04-08 Island Delite, Ltd. Low temperature composition preparation device, and methods of constructing and utilizing same
US5890531A (en) * 1995-04-18 1999-04-06 Noram Engineering And Constructors Ltd. Apparatus for the self-cleaning of process tubes
US5983994A (en) * 1997-10-30 1999-11-16 Electric Power Research Institute, Inc. Method and apparatus for on-line cleaning of and improvement of heat transfer in a heat exchanger tube
JP3632064B2 (ja) * 1997-11-17 2005-03-23 綜研化学株式会社 供給流体自動交換装置

Also Published As

Publication number Publication date
DE60032753D1 (de) 2007-02-15
BR0009388B1 (pt) 2009-01-13
CA2366965A1 (fr) 2000-10-05
ATE350632T1 (de) 2007-01-15
NO319444B1 (no) 2005-08-15
NO20014739L (no) 2001-11-29
US6070417A (en) 2000-06-06
MXPA01009826A (es) 2003-06-24
EA200101013A1 (ru) 2002-02-28
BR0009388A (pt) 2002-01-08
OA12040A (en) 2006-05-02
NO20014739D0 (no) 2001-09-28
EP1166020A4 (fr) 2005-05-11
AU4022000A (en) 2000-10-16
JP2002539946A (ja) 2002-11-26
WO2000058671A1 (fr) 2000-10-05
EP1166020A1 (fr) 2002-01-02
DE60032753T2 (de) 2007-11-08
CA2366965C (fr) 2007-08-07
EA002861B1 (ru) 2002-10-31

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